linux-stable.git/drivers/gpu/drm/mediatek, branch v5.5.8

drm/mediatek: Add gamma property according to hardware capability

2020-02-24T07:38:25+00:00

[ Upstream commit 4cebc1de506fa753301266a5a23bb21bca52ad3a ]

If there is no gamma function in the crtc
display path, don't add gamma property
for crtc

Fixes: 2f3f4dda747c ("drm/mediatek: Add gamma correction.")
Signed-off-by: Yongqiang Niu 
Signed-off-by: Hsin-Yi Wang 
Signed-off-by: CK Hu 
Signed-off-by: Sasha Levin

drm/mediatek: handle events when enabling/disabling crtc

2020-02-24T07:38:18+00:00

[ Upstream commit 411f5c1eacfebb1f6e40b653d29447cdfe7282aa ]

The driver currently handles vblank events only when updating planes on
an already enabled CRTC. The atomic update API however allows requesting
an event when enabling or disabling a CRTC. This currently leads to
event objects being leaked in the kernel and to events not being sent
out. Fix it.

Signed-off-by: Bibby Hsieh 
Signed-off-by: CK Hu 
Signed-off-by: Sasha Levin

drm/mediatek: reduce the hbp and hfp for phy timing

2019-12-17T02:23:43+00:00

There are some extra data transfer in dsi.
ex. LPX, hs_prepare, hs_zero, hs_exit and the sof/eof of dsi packet.
This signal will enlarge the line time. So the real frame on dsi bus
will be lower than calc by video timing.

So dsi driver reduces the hbp and hfp to keep the line time.

Fixes: 7a5bc4e22ecf ("drm/mediatek: change the dsi phytiming calculate method")
Signed-off-by: Jitao Shi 
Tested-by: Hsin-Yi Wang 
Tested-by: Enric Balletbo i Serra 
Signed-off-by: CK Hu

drm/mediatek: Fix can't get component for external display plane.

2019-12-09T01:29:05+00:00

The original logic is ok for primary display, but will not find out
component for external display.

For example, plane->index is 6 for external display, but there are only
2 layer nr in external display, and this condition will never happen:
if (plane->index < (count + mtk_ddp_comp_layer_nr(comp)))

Fix this by using the offset of the plane to mtk_crtc->planes as index,
instead of plane->index.

Fixes: d6b53f68356f ("drm/mediatek: Add helper to get component for a plane")
Signed-off-by: Yongqiang Niu 
Signed-off-by: Pi-Hsun Shih 
Signed-off-by: CK Hu

drm/mediatek: Check return value of mtk_drm_ddp_comp_for_plane.

2019-12-09T01:29:05+00:00

The mtk_drm_ddp_comp_for_plane can return NULL, but the usage doesn't
check for it. Add check for it.

Fixes: d6b53f68356f ("drm/mediatek: Add helper to get component for a plane")
Signed-off-by: Pi-Hsun Shih 
Signed-off-by: CK Hu

Merge tag 'mediatek-drm-next-5.5-2' of https://github.com/ckhu-mediatek/linux.git-tags into drm-next

2019-11-08T03:19:55+00:00

Mediatek DRM next for Linux 5.5 - 2

Signed-off-by: Dave Airlie 

From: CK Hu 
Link: https://patchwork.freedesktop.org/patch/msgid/1573093419.13645.5.camel@mtksdaap41

drm/mediatek: Support 180 degree rotation

2019-11-06T08:00:45+00:00

Now that we support both reflections, we can expose 180 degree rotation
and rely on the simplify routine to convert that into REFLECT_X |
REFLECT_Y

Signed-off-by: Sean Paul 
Signed-off-by: CK Hu

drm/mediatek: Support reflect-x plane rotation

2019-11-06T08:00:45+00:00

Add support for REFLECT_X rotations.

Cc: Fritz Koenig 
Cc: Daniele Castagna 
Cc: Miguel Casas 
Cc: Mark Yacoub 
Signed-off-by: Sean Paul 
Signed-off-by: CK Hu

drm/mediatek: Support reflect-y plane rotation

2019-11-06T08:00:44+00:00

Expose the rotation property and handle REFLECT_Y rotations.

Cc: Fritz Koenig 
Cc: Daniele Castagna 
Cc: Miguel Casas 
Cc: Mark Yacoub 
Signed-off-by: Sean Paul 
Signed-off-by: CK Hu

drm/mediatek: Plumb supported rotation values from components to plane init

2019-11-06T08:00:44+00:00

This patch adds the ability for components to expose supported rotations
which will be exposed to userspace via a plane rotation property.

No functional changes in this patch.

Signed-off-by: Sean Paul 
Signed-off-by: CK Hu